joseph



end.

5ta-tet 1LT. EEAM,rosE1 H o. FREEMAN,

' ILLINOIS.

AND D. B. MiLLs, 0E PALESTINE,

Letters Patent No. 57,590, dated December 7, 1869.

IMPROVEMENT IN HOLLOW AUG-ER.

The Schedule referred to intheee Letters 'Patent and making part o'f thesame.

To all whom it may concern: Be it known that we, H. T. BEAM, JOSEPH O.FREE- I MAN, and D. B. MILLS, of Palestine, iu the county of Crawford,and State of Illinois, have invented a new and usetul'lool for Makingthe 'Icnons `on Spokes and the Holes in Felloes for Wheels; and we dohereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawing, inwhich- Figure 1 is a side elevation,

Figure?, an end View, and

Figure 3, a centr lvertical section, (taken in the line a: o: of fig.2,) of the tool for making the tenons on the spokes; and

Figures 4 and 5 are side elevations making the mortises in the felloes.

Like letters designate like parts in all the figures.

The nature of our invention consists in the peculiar of the tool forconstruction of a tool for vmaking a `double tenon on spokes, as will behereinafter described.

. 'Io enable those skilled in the art to make and use" our invention, wewill proceed to describeits construe tion and operation.

In the drawing- A represents a cylindrical stock, with oblong openingsin its side, and an extension', B,'on its lower end.

C is a ring inside of the stock A, and near its lower This is held inposition by a small set-screw, a.

In thev under side of the extension B, isa groove, in which fits a bitor knife, D,wth two cutting-edges b and c, the form of which is shown-infig. 6.

In the extension B is a slot,in which. is a bolt, d, which passesthrough the hitor knife D, by ineans of which it can be 'adjusted asdescribed. v

.E is a cylindrical guide, which fits into an opening in the stock A,and is held in any desired position by means of a set-screw, e, whichpasses through the side of the'stock.

At the lower end of this guide isa flange f, which extends out againstthe inside of the cylindrical stock A.

Its upper end is formed to receivea brace or crank, bymeans -of which itis operated. p Inside of the guide E is a spindle, F, in the lower endof which is a centre-point formed like the end of a screw or gimlet.

On this spindle, a short distance from its lower end, is a flange, g, ofthesaine diameter as the one ou the guide E, thus insuring thecentre-point being kept in a line with the centre of the stock A.

On one ofthe side-piecesof the stock, is an extension, h,the lower edgeof which does not extend quite down to the top of the lower end of thestock, thus forming a slot, fi.

In the flange g, of the spindle F, is a pin, j, ofthe proper size topass into the slot i.

mortises in the felloes.

G is the stock, in the lower end of which is asocket for -the receptionof the bit which -bores the hole through the felloe,which1nust be of thesame size as the lower end of the stock.

The upper end of this stock is made of the proper form to receive thebrace or crank, by means of which it is turned.

In a portion of the stock Gisa slot, 7c, across which, on one 'side ofthe stock, is a bit, l, the shank of which flush with the outside ofsaidvstock I A thumb-screw, on., which passes through the slot k, holdsthe bit in any desired position.

The bit l extends outside the stock, and a short distance above itscuttingredge is a projection, n, which prevents the bit from cutting toofar into the felloe.

To form the tenon on point of the spindle F l turn it so that the pin j,in the flange g, `the slot c'. x

The stookA and its accompanying parts a're thenturned sueiently to drivethe centre-point into the end of the spoke.-

When this has been done, give the stock A, aslight turn backward, whichwill release the' pin j from under the eztension h. Then turn the stockforward, and the spindle, F and its centre-point will be forced upwarduntil the end of the spoke meets the cuttingedge bof the knife D,whichwill cut the first tenon on the spoke, as shown by the diagram marked Ain the drawing.

This shoulder then meets'thc cutting-edge c of the the spoke, bring thecentrewill pass into diagram marked .B in the drawing.

The depth of the second shoulder means. of 'the adjustable ring C.

To make the mortise in the felloe,a bit' is placed in the lower end ofthe stock G, which may be turned by an ordinary brace, and a hole boredentirely through the felloe.

The lower end of the stockG passes through until the bit l comes incontact' with the felloe, and cuts away the wood around the hole made bythe first bit, the depth of the second tenon on the spoke thus forming amortise of the proper form to receive the tenons on the end of thespoke.

is regulated by Figs. 4 and 5 are views of the tool for making the isflat and fits into a recess in the stock, its face being dolvn below thestock A, and

knife D, and cuts another shoulder, as shown in Vthe lVe'are aware ofthe patent granted, September 8, i 2. The knife D, when constructed andused sub- 1863, to George N. Stearns, for a. hollow auger. Westztntielly as :tud for the purpose shown and described.

do not claim any of the devices claimed in sztid pet- H. T. BEAM. eut;but having described our invention, JOSEPH G. FREEMAN.

What we claim as nemend desire to secure by Let- D. B. MILLS.

ters Patent, isl. The combination of the stock A, guide E, spin-Witnesses:

die F, ring (l, and knife D, when constructed and ztr- E. LAGAN, rangedsubstantially as shown and described. JOHN M. T. HILL.

